Application of MCS-51 Single-Chip Microprocessor to the Interface of Paper-Tape Reader

■ In the paper,the interface made of MCS-51 single chip microprocessor between YDG6 paper-tape reader and GA16/220 main computerin the CNC system for a flame cutting machine, is introduced.The hard-ware and software of the interface are analysed in, detail. By the practicalapplication, it is concluded that this interface controlled by MCS-51 is lowcost, quick to develop and reliable to work.